Back cavity of golf club iron head



FIG. 1 is a rear elevational view of a golf club iron head (shown in brokenlines) illustrating the back cavity of my new design; and,

FIG. 2 is a perspective view of FIG. 1.

Any broken line illustration in the drawing disclosure is not part of the design sought to be patented. - -. 

The ornamental design for a back cavity of a golf club iron head, as shown. 